Revolutionised Glazing with Energy-Efficient Windows and Doors

If you plan to save money, you need to look after your windows and doors. Energy-inefficient windows and doors in your home expense you about ₤ 200 to ₤ 225 on the energy bills every year.

According to the specialist operating in a glazing company, the latest variety of windows has much improved level of thermal performance. Therefore, you live in a warmer, cosy environment with lowered energy expense.

Window cleaning and maintenance is a regular job, which costs you a lump sum cash each time. To prevent the recurring expense, consider switching over to self-cleaning glasses for your doors and windows. With this range of window glasses, you do not need to spend time, cash or effort on regular cleaning. This variety of products uses the natural light and the rain to lower the dirt and grime build-up on the surface. Throughout dry spells, you require to arrange a garden hose to facilitate their auto-clean mode.

Low-e glass and window movie: Window films work as insulator. Therefore, with installation of these movies, you boost the thermal performance of your windows. Professionals associated with a renowned glass business in the city discuss, as these make your windows truly energy-efficient, you make a considerable saving on power consumption expenses. On the other hand, low-e glass is the shortened kind of low-emissivity glass, which also comes from the energy-efficient range. This variety of glazing products comes with an extra coating on the surface. As a result, the heat transfer through the windows is even very little.

Home re-valuation: If and when you decide to offer your home, do you understand how it’ll be evaluated in the market? If the home includes the energy-efficient windows of the modern times, it will have financially rewarding deal costs. You better bear in mind that 3 out of every 4 home buyers exclusively prefer properties with energy-efficient windows and doors. It is more crucial, maybe, to mention here that this trend is gradually rising across the UK.

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Window Condensation – Where the Water Vapour come from?

Acknowledging and managing the sources of water vapour inside a house can assist to decrease the probability of condensation forming on windows and doors.

Water Vapour and Condensation

Condensation occurs when a gas or vapour modifications to a liquid. In the house, this occurs when water vapour condenses onto surfaces such as windows, doors and mirrors.

When air filled with water vapour meets a surface area– such as a window pane– which is cooler than itself, it will shed surplus water vapour on that surface area, initially as a great mist or, if in fantastic enough amounts, as beads of water.

One method to lower the amount of condensation that occurs in the house is to offer adequate ventilation for wet air. Another is to make efforts– where practicable– to reduce the formation of water vapour in the first place.

Sources of water vapour inside a home


  • Two sleeping adults produce around one litre of wetness in 8 hours.


  • Steam clouds from heating water in saucepans and kettles. The gas in a cooker contains some water and average gas cooker can produce approximately one litre of moisture per hour.

Washing up

  • Through vapour clouds, released by the warm water.

Bathing, laundry, and damp outer clothing

  • These prevail major sources of water vapour in the house.

Heating systems

  • A flueless gas heating system can produce up to 350cc of wetness per hour.

Indoor plants

  • The life processes of plants are a substantial source of water vapour.

New homes

  • The bricks, lumber, concrete and other materials in an average 3 bedroomed house soak up about 7,000 litres of water during building and construction. Much of this is dissipated inside later throughout the drying out duration.

Sources of water vapour outside a house

Water vapour is always present in the outside air and levels depend on atmospheric conditions (temperature level and humidity).

A case in point is the formation of condensation on the whole surface area of a car, including the glazing, when left in an exposed location. This condensation would generally be gotten rid of using both the wipers blades and a squeegee.

As double and triple glazing becomes more efficient, heat is less able to pass through the window and warm the outer pane. This suggests that the external pane surface area remains cold producing the conditions that may permit condensation to form.

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Energy Efficient Glazing: A Useful Guide

In any home heat will be lost through doors and windows, nevertheless this heat loss can be decreased when a house has energy efficient double or triple glazing.

Energy efficient glazing helps keep heat inside the home and, in mix with other house energy effectiveness steps (such as cavity wall insulation, loft insulation and an energy-efficient heating unit), can cause a reduction in annual heating costs.

If you’re considering purchasing energy efficient glazing, you’re definitely not alone. There’s a lot to gain from this home improvement, however obviously there is likewise a lot to consider.

We advise using the GGF Energy Savings Calculator to see what prospective cost savings you could make when having energy efficient windows installed.

This short guide will take you through some essential info that will assist you make an informed choice.

What is energy effective glazing?

Energy effective glazing is the term used to explain glazing consisting of two or more glass panes within a sealed unit. This consists of double and triple glazed windows and comparable units discovered within doors.

Energy efficient doors and windows include a framing product (timber, aluminium, uPVC or composite) into which one or more glass sealed systems are fitted according to the design of the window or door.

Energy efficient glazing is ranked according to its ability to lower the quantity of heat that can travel through the window, the capability for sunlight to travel through the glass system, and the capacity for air to move through the unit.

Commonly, the highest ranked glazing according to performance is made with Low-Emissivity Glass which has an unique coating on the inner surface area of one pane, allowing light to travel through whilst reflecting heat back into the room.

What is in between the glass panes of a sealed system?

The air space limits the quantity of cold air able to get into your house. It does this by serving as an insulator and is totally sealed.

The space between the glass panes is filled with air or gas such as argon, krypton or xenon. These help reduce heat loss through the unit. When gas such as argon– which has low conductivity– is utilized within this space, the window is then even more efficient at keeping heat inside the home and likewise at hindering sound waves from within or outside your house, lowering sound pollution.

Sealed systems likewise have a strip in between the panes, made from metal or polymer. This strip is called a spacer which can contain a drying agent that handles any moisture that is trapped in the area between the sheets of glass.

The type of frame material used

As with the glass itself, the frame material utilized in energy effective windows and doors is also crucial.

There are numerous alternatives here:

  • uPVC has many benefits consisting of efficiency longevity (generally twenty years or more) and being recyclable.
  • Wood frames are eco-friendly and are often defined for residential or commercial properties where using initial products is needed, such as those within a conservation area.
  • Aluminium frames are an eco-friendly, modern-day choice due to the fact that the production of the product is low effect, recyclable and the slim appearance of the frames is preferable.
  • Composite frames are made up of a combination of wood and aluminium or plastic.

Energy score and u-values

For ease of purchase, particular window makers identify the energy efficiency of their windows with an energy score ranging from A++ to C, A++ being the most efficient. This score system has actually been developed by the British Fenestration Rating Council (BFRC) and it takes into consideration the entire window.

When this energy ranking is offered, a whole window u-value is likewise calculated. The u-value refers to how quickly heat can go through the system. The u-value scale works in the opposite way to an energy rating, because the higher the u-value, the more easily heat can travel through the window and the window is less effective.

The advantages of energy effective glazing

There are many advantages of EEG, which are increasing all the time as innovation and structure strategies advance, and our eco-awareness increases.

Key benefits consist of:

  • Enhanced energy effectiveness: Energy effective glazing might form part of a wider variety of energy saving procedures. If your house likewise includes cavity wall insulation, loft insulation and an energy efficient heating unit, these can all interact to minimise the amount of energy required to warm your home. As a consequence you can delight in lower energy expenses and a reduced carbon footprint.
  • Lowered noise pollution: Sealed double and triple glazing can be reliable at minimising medium to high frequency noise, developing a more comfy, private and tranquil house environment.

Improved thermal insulation: Energy effective glazing can help to keep your home warmer in winter season and cooler in summer season. The air or gas space in between the panes of glass in a sealed unit offers an additional layer of insulation. This increased thermal resistance minimizes the amount of heat that can escape the house during the cooler months. In summer season the reverse takes place, and the windows help keep the heat outside, keeping the house cooler.

Minimised condensation: Energy effective windows and doors help reduce the risk of condensation which occurs when a cold surface area and wet air satisfy. The resulting moisture can potentially damage the window frame and if it is especially bad, may even impact other areas of the space.

Safety and security: As there are two or more panes instead of one, energy effective glazed windows use a more safe and secure barrier versus undesirable entry than a single glazed window. The level of security can be boosted even more when laminated glass is used.

Expense savings: Assuming all other procedures have been taken, Installing energy effective windows can save you money over the long term by minimising the quantity of energy required to warm your home.The savings you get from energy effective glazing will depend on a number of elements, including the size of the home, the type of windows you purchase and your energy supplier. For a sign of the possible cost savings you might delight in based upon your house and windows, use the Energy Savings Calculator produced by the Glass and Glazing Federation.

A more comfortable living environment: Lower heat loss, plus reduced sound, assists toward a feeling of a lot more comfy house.

Increased home value: Making energy-saving improvements to your home has the possible to enhance its worth. Potential property buyers are significantly familiar with the eco-credentials of any home they consider buying. According to a report carried out by the Government based on property sales made between 1995 and 2011, a house owner making energy conserving improvements to their home might see a 14-38% increase in worth as a result.

A note on the value of ventilation

In more recent dwellings with higher effectiveness insulation, an absence of adequate ventilation can increase the danger of condensation forming on internal surfaces– including on windows and other glazed surfaces. A way of lowering this danger is to guarantee each space has adequate ventilation, such as drip ventilators or other kinds of ventilation.

Continuous improvements in frames, glass and gas combinations indicate the consumer’s energy effective window choice is increasing all the time. Energy effective glazing is a beneficial addition to any modern-day property wanting to take pleasure in a comfortable and potentially greater worth home.

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A Guide to Door Styles

From frame materials to glazing options, opening mechanisms to locks and components, there’s much to think about when selecting doors for your house.

If you’re considering setting up or changing doors in your home one of the things you’ll need to choose is which style of door is right for the job.

Even where the option is apparent– when it comes to an entryway door, for instance– there are many things to think about when it comes to materials, glazing and design.

In this article we cover:

  • Bi-folding doors
  • Entrance doors
  • French doors
  • Outdoor patio doors
  • Sliding doors
  • Bi-folding doors
  • Bi-folding doors include several hinging panels that can be folded together to develop a big, unobstructed opening.

Bi-folding doors are a popular choice for easy opening and space-saving and can be set up in any part of the home.

They come in many different styles, finishes and products and can be made to integrate completely with the design of your house.

Entryway doors (front and back doors).

Safe, protected, weatherproof but at the same time inviting to visitors, the front entrance to your house is one crucial parts of your home.

Your entryway doors can be made from PVC-u, aluminium, steel or wood, and each has their own qualities and benefits– from price, durability, design and appearance through to energy effectiveness performance.

New entryway doors nowadays primarily come pre-hung in a frame and are known as door sets, with pre-drilling for manages, keeps and locks.

French doors.

French doors are a set of hinged doors that open from the middle, generally opening outwards to offer complete access to the width of the opening.

French doors can add a touch of class to your home and blend the outside and indoor ambience and can develop an open-plan area in your house.

From 17th-century France, French doors typically opened out onto balconies but today they can feature on many areas of the home. In particular, they are extremely helpful as the exit doors from a conservatory or orangery to a garden.

New external French doors can be double or triple glazed and are completely sealed to keep your home warm and weatherproof. In addition, thanks to modern technology they are extremely energy efficient.

Many property owners enjoy the continental feel French doors provide and the way they can develop the feeling of more space and light.

Outdoor patio doors.

Patio doors are glass panelled doors that open onto an outdoor patio, garden or terrace. These consist of sliding doors that move one method or open centrally moving in both instructions, and French doors.

Patio area doors are popular with property owners since in addition to combining security and modern-day style they can open out onto your patio area or garden, allowing you to link indoor environment with the natural outside environment.

Patio doors nowadays describe sliding doors. They can be made using modern-day products and completely incorporated with the look and design of your house.

Moving doors.

Moving doors include 2 or more panels where one panel slides horizontally past another. They can be made of one, two, three or 4 panels, with a couple of panels sliding.

Sliding doors slide along tracks and are popular with property owners for a range of rooms consisting of as patio area doors and conservatory doors, and as internal doors for access to smaller sized spaces where area is restricted, such as closets and kitchen spaces.

They are popular with homeowners seeking to increase room area and make rooms more flexible as they can provide the alternative of an open-plan design when you desire it– the benefit of sliding doors in between spaces or in between the inside and outdoors.

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What is Secondary Glazing?

Secondary Glazing can provide a cost effective and efficient method of enhancing the heat retention, sound decrease and security of your windows.

Secondary glazing involves installing a “secondary” window, i.e. a fully independent internal window, on the space side of your existing main window.

Fitting an internal secondary window types double glazing with your existing single glazed window. The secondary window is a separate system including a single glazed pane within its own frame and is fitted on the room side of your existing windows and sealed around the edges.

The series of secondary windows consists of horizontal sliders, vertical sliders, top hung, side hung, double side hung, lift-outs, and detachable fixed panels fitted onto the back of doors.

What are the advantages of Secondary Glazing?

Secondary glazing is a cost effective way of enhancing heat retention and sound reduction in your home, as well as offering some additional security.

It can be a great less expensive option to changing double or triple glazed primary windows.

Secondary windows units generally have separate deals with and open so that you can get access to clean and open your primary windows.

Secondary glazing can lead to significant expense savings

Secondary glazing is significantly cheaper and simpler to fit than replacement windows because it does not require total elimination and replacement of your existing windows.

Heat loss is lowered with Secondary Glazing

A major long-term benefit of secondary glazing is the heat retention properties. This is because it adds a 2nd layer of glass behind your existing main windows that minimizes both the amount of warm air that can get away from your house and the amount of cold air that can go into.

The heat generated from your heating unit will stay inside instead of getting away through ineffective windows, and there will be less draughts, making you feel warmer. Your heating bills might drop significantly as your home ends up being more energy effective, excellent for you and excellent for the environment.

Experience less external noise with Secondary Glazing

Secondary glazing likewise functions as an extra physical barrier versus outside noise, minimizing the quantity of noise coming into your home through (closed) windows.

This noise decrease can be further enhanced by installing special sound-reducing laminate glass, or by having a space of a minimum of 100 mm in between the secondary and primary window and lining the window head and reveals in between with acoustic tiles.

Secondary Glazing means your existing primary windows do not need to be removed, and there are lots of reasons that you might require to retain your original windows.

This is particularly helpful in listed structures, buildings in areas where they are subject to an Article 4 Directive, and locations where preparation approval guidelines do not allow any visual modifications whatsoever to the external primary windows.

These older homes are typically draughty and adding secondary glazing that doesn’t need any preparation consent might be the only efficient way to minimise heat loss and improve sound insulation.

In other scenarios where windows can not be replaced or where you do not have the budget plan to change them, Secondary Glazing can offer an alternative option. It’s also a great cost effective alternative for leased accommodation.

Secondary Glazing is low maintenance

Secondary Glazing is low maintenance and doesn’t trigger the very same level of disruption as fitting replacement primary double or triple glazed windows, and can last for many years.

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A Guide to Window Styles

If you require brand-new windows – whether to change your existing ones or for a new develop or glazed extension, among the things you’ll need to choose is which window styles are right for the job.

Listed below we take a look at a few of the primary styles of windows you can select for your home:-

  • Casement windows
  • Vertical sliding (sash) windows
  • Tilt and turn windows
  • Roofing system windows
  • Casement windows

Casement windows are connected to their frames by several hinges. The opening sashes can be leading, bottom or side hung on hinges attached to the window frame.

Casement windows have actually been around for centuries. At first there was simply a single frame that hinged into a stone or timber frame opening.

In the UK, casement windows were the most common house window before the sash window was presented and included leaded glass– glass panes held in location with strips of lead.

Today, the sash window continues to be among the most popular types of replacement window due to its performance, durability and the vast series of styles and designs readily available.

Vertical moving (sash) windows

Also called box sash windows or ‘sash and case’ windows in Scotland. Sash windows include one or more movable ‘sashes’ that open via a sliding mechanism.

Using solid practicality and beauty, sash windows have actually been one of the most popular kinds of window in the UK for centuries.

While their popularity momentarily dipped in the 1960s to accompany the building of more modern structures with casement-style windows, beginning in the 1990s a shift in mindsets towards conservation has resulted in an increasing appreciation for the design and visual style of sash windows.

Due to this revival, lots of property owners now select to bring back and renew sash windows in order to make their homes feel and look more traditional.

Historically, sash windows had timber frames however in recent years uPVC and aluminium sash windows have actually appeared. These can replicate the aesthetic qualities of standard sash windows while conquering many previous shortcomings– leading to windows that are both more energy efficient and need less maintenance and painting.

Tilt and turn windows

Tilt and turn windows can be opened inwards in 2 various ways– by tilting vertically for protected ventilation or by swinging inwards horizontally for a complete opening option.

When opened vertically, tilt and turn-style windows can offer a safe and secure source of ventilation for the living areas in which they are fitted. Multi-point locking systems can assist make your home much more protected.

When tilt and turn windows are opened horizontally, they not just allow large volumes of air to get in and exit a room, but also use easy access to the beyond the window for cleaning from within.

Because of these qualities and the wide variety of material and style choices readily available, tilt and turn windows can be an attractive choice for lots of rooms in the house.

Roofing windows

Roof windows are windows that are integrated into the style of a roofing and which can open external or pivot.

Roofing system windows consist of rooflights and skylights, and can bring light and fresh air to parts of a home where basic vertical windows can not be set up.

Setting up a roofing window or skylight in a dark upstairs room, for instance, can revitalize it with natural light and help turn it into a brilliant, airy bedroom or additional living space.

For many property owners this makes them a suitable window option for loft conversions, attics, house extensions and more.

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Will Double Glazing Stop Condensation

When you have single glazed windows in your house, you will observe that some of your rooms feel much hotter throughout summertimes and cooler throughout winter seasons. In addition, frequent sound and disruption can end up being a typical issue with these windows

Owing to these factors, increasingly more individuals are now choosing double glazing their windows in addition to doors, but the main question to ponder on here is: will double glazing stop condensation and what are the advantages of double glazing?

What is Double Glazing?

The term glazing, derived from the Middle English word for glass, is a specialised window term. Keep in mind that even nowadays, individuals who fix or fix window glass are frequently called glaziers, and you’re more likely to hear the word glazing used in a more technical manner when many window makers call their window creates “single-glazed” or “double-glazed.”.

Double glazed windows, in this regard, are an excellent energy efficient option with the fringe benefit of reducing sound. These windows have 2 panes of glass. It deserves mentioning that the sealed air space present in between the 2 panes functions as an excellent added layer of insulation. Keep in mind that this additional thermal resistance tends to minimise the amount of heat that leaves in winter season and assists keep your home at a more comfortable and cosy temperature.

On the other hand, double glazing generally uses the opposite effect in summertime as it avoids undesirable heat from entering into your home. The extra insulation assists lessen your reliance on items like synthetic heating units as well as a/c unit and can lower your energy expenses.

Double glazed windows might have a low-E covering. Note that Low-E glass can decrease the amount of heat which leaves. Also, double glazed windows do not need to be tinted. Tinting can lower visible light while obstructing views. It is worth pointing out that double glazed windows can decrease ultraviolet rays by as much as 75 percent. Damaging UV rays might fade carpet, wood, fabric, paper, and even art work.

How Double Glazing Increases the Quality of Your Home.

High-quality frames along with edge spacers are standard energy effective window enhancements. Among the most popular options is a frame made from high quality UPVC.

Double glazing is also an ideal way to improve the resale worth of a home. This is due to the fact that with double glazing, older houses can be just as preferable and worthy to buyers who want to ensure that your home they purchase is efficiently insulated.

Security is likewise boosted as double glazed windows are often harder to break compared to windows with single glass panes. Keep in mind that the tight seal tends to make them more difficult to require or pry open from the exterior. You specify laminated or toughened glass for even greater security.

Double Glazing and Insulation.

A warmer glass surface area implies less chance of condensation. A lot of double and triple glazed windows are carefully designed to decrease the loss of heat from an interior space, like a room, by conduction, often from the inside to the beyond the building.

And in case a room is heated, under typical conditions, the room side temperature of an inner pane of a double glazed window would be much greater compared to single glazing. The likelihood of condensation, as a result, occurring when warm and damp air in your room comes in contact with this glass is lowered.

How Double Glazed Windows Can Stop Condensation.

When a window is just single glazed, the cold temperature level on the outside typically transfers very quickly to the within, triggering condensation to occur rapidly. On the other hand, when double glazing is set up, you will notice there is much better thermal insulation between the inside and outdoors. Condensation is considerably lowered, as a result, which creates a warmer, much healthier and drier home.

Double glazing is also called “insulating glass”. That is since it can provide a reliable insulating layer from the outside to within.

That is likewise how double glazed windows can help reduce unwanted condensation in addition to the associated wetness and water damage, mildew and mould, and the health effects.

It deserves pointing out that double-glazed windows are now typically basic both for new building along with replacement windows. These windows could be crafted so there’s merely dead air area in the little space in between the two window panes; that being stated, today it’s more common that these windows are diligently created so that the space in between the two window panes is filled using an inert gas, like argon or xenon, and this tends to increase the resistance to basic energy transfer through the glass panel.

Choosing the Right Window Frame.

The level of condensation at or near the edge of the double glazing as well as on your window frame would be affected partly by the product of your window frame. It deserves mentioning that timber window frames are terrific insulators. With high quality double glazing, and a home with good management of fresh air ventilation, it can be fairly expected that condensation on your windows could be removed.

On the other hand, where the window frames are made from aluminium (that isn’t thermally boosted) it’s likely that there would continue to be some level of condensation on your frames. The level would be influenced partly by management of inside humidity level and will be more noticeable in incredibly cold temperature levels.

Condensation could be a major issue, specifically in older homes; this is due to the fact that it causes mildew and mould, and in a lot of cases it would likewise rot timber frames while harming your household’s health. In this regard, double glazing works well to lower excess moisture on the window panes.

Final Thoughts.

As condensation only tends to form on surfaces that are cooler compared to the surrounding air, double glazing can greatly help reduce it by allowing the inner glass of your windows to keep heat. Yes, double glazing can certainly be a very efficient method to stop condensation.

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